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Bobbysgmc · 03-23-2021, 01:32 PM

Use old school 85-90w.The newer gear lube will eat up your brass synchro's.Doing my swap next weekend weather permitting.Went with the M22 Rockcrusher with the correct gear ratio for 3.08 rear end.My shifter handle looks a lot like yours except home made.Good luck.

03-23-2021, 01:32 PM	#8
Bobbysgmc Registered User Join Date: Apr 2018 Location: Columbia,Tn Posts: 28	Re: 68 C10 Muncie M20 Project Use old school 85-90w.The newer gear lube will eat up your brass synchro's.Doing my swap next weekend weather permitting.Went with the M22 Rockcrusher with the correct gear ratio for 3.08 rear end.My shifter handle looks a lot like yours except home made.Good luck.